公开(公告)号：US12252274B2

公开(公告)日：2025-03-18

申请号：US17804849

申请日：2022-05-31

Applicant: QUALCOMM Incorporated

Inventor： Songwon Jee ,  Yunxiang Liu ,  William Morrison

IPC: B64G1/28 ,  B64G1/24 ,  G01S5/02 ,  G01S19/42

Abstract: Aspects presented herein may enable a positioning device or entity to perform PR measurement error detection and classification based on SV geometry via ML. In one aspect, a UE or a location server determines for each SV of a set of SVs at least a geometric orientation with respect to the UE. The UE or the location server determines, based on an ML classifier and the determined geometric orientation with respect to the UE for each SV of at least a subset of the set of SVs, a relative PR weight for each SV of the set of SVs. The UE or the location server estimates a position of the UE based on PR measurements of each SV of the set of SVs and the relative PR weight for each SV of the set of SVs.

公开(公告)号：US12248082B2

公开(公告)日：2025-03-11

申请号：US17804809

申请日：2022-05-31

Applicant: QUALCOMM Incorporated

Inventor： William Morrison ,  Songwon Jee

IPC: H04W64/00 ,  G01S5/02 ,  G06F18/20 ,  G06F18/243

Abstract: Aspects presented herein may improve the performance and accuracy of GNSS-based positioning, where a position-grid based ML may be implemented by a UE or a location server to improve the accuracy of identifying a warm-start position of the UE. In one aspect, a UE or a location server determines, for each grid point within a range of an initial position of a UE, a set of PR residuals based on PRs for each SV of a set of SVs. The UE or the location server determines an estimated position of the UE based on the sets of determined PR residuals.